The work
What entry door installation actually involves
The slab, the frame and the threshold, which usually go together
Replacing an entry door can mean just the slab, or a pre-hung unit with a new frame and threshold. A slab-only swap depends on the existing frame being square and sound, and on the new door matching the hinge and lock positions exactly.
Most exterior replacements are pre-hung, because the frame, the sill and the weatherstripping are usually the reason the old door draughts and sticks.
Fibreglass and steel doors are more stable than timber in a position that takes weather and sun, and they hold their finish longer. Timber looks better and needs maintaining, particularly on a south or west elevation with no porch.
Security
The lock is the part people buy, and the frame is the part that fails
Spending on the door and the lock while leaving the strike fixed into thin trim is the same mistake as on any other door, and the front door is where it matters most.
A reinforced strike plate with screws long enough to reach the framing behind is a small item on the invoice and moves the failure point from the frame to the lock itself.
Glazing beside or in the door is the other consideration, because a thumb turn reachable through broken glass makes the lock irrelevant. Laminated glass or a different lock arrangement solves it.
Failure points
Two things that go wrong
The threshold and the sill pan
“Is a sill pan being installed under the threshold?”
Water getting under an entry door damages the floor and the framing below, and the defence is a properly detailed sill pan and threshold. It is hidden work, it is left out routinely, and it is the most common cause of rot at a front door.
Finishing left to the owner
“Is the door supplied finished, and if not, what does the warranty require and by when?”
Many doors arrive primed rather than finished, and the manufacturer's warranty often requires all six edges, including the top and bottom, to be sealed within a period. Doors left primed over a winter are a warranty problem and a swelling problem.
Before you book entry door installation
How we rank →Six checks, in the order they save you the most. None of them takes longer than a phone call, and the first one is the reason two quotes for the same job can be a thousand apart.
Common questions about entry door installation
Who handles entry door installation?
Entry door installation is handled by window companies. Not every company in the trade takes this work on, so each ranking lists the services a company genuinely performs rather than everything it advertises.
What should I ask before booking entry door installation?
Ask what the quote includes and excludes, who is doing the work, whether a permit is needed and who is pulling it, and what the workmanship warranty covers. Get the answers in writing before anyone starts.
How do I compare quotes for this?
Put them on one sheet line by line. Differences in price almost always turn out to be differences in scope, material grade or warranty length rather than margin.
Is entry door installation priced separately from the rest of the job?
Usually it is a line inside a larger quote rather than its own invoice, which is exactly why the exclusions matter. Ask for it itemised so you can compare that line between companies instead of comparing two totals.
For windows and doors
Do you offer entry door installation?
Claim your profile so the services you actually perform are the ones recorded here, alongside your licence, hours and coverage. Neither claiming nor advertising buys a ranked position.